A month ago I bought a pair of 4.80x12 trailer tires. Cheap chinese ones. I bet that Gateway didn't have 15 bucks in one.5 trips and about 100 miles later they look worn out to the point of making me worry about taking them on my next trip. I am thinking about trying some p155x12 car tires next time buit my neighbor said that one of his pals tried car tires and the trailer wouldn't pull worth a hoot. Whatever that means. I put some on my Procraft and couldn't tell the difference. Of course they were f70x14s. What do you guys think???